I.C.S. Reference Library

I.C.S. Reference Library

Author: International Correspondence Schools

Publisher:

Published: 1909

Total Pages: 862

ISBN-13:

DOWNLOAD EBOOK

V. 148. Hoisting. Haulage. Mine drainage -- v. 149 Rock boring. Rock drilling. Expolsives and blasting. Coal-cutting machinery. Timbering. Timber trees. Trackwork -- v. 150. Geology of coal. Examination of coal properties. Drifts, slopes, and shafts. Methods of working.